Acetylene-lamp.



Patented June 26, 1917.

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UNITED srarns, PATENT onruon AUGIE L. HANSEN, or cHIcAeoILLINoIs,ASSIGNORTO JUSTRITE MANUFACTURING COMBANY, OF CHICAGO, ILLINOIS, ACORPORATION OF IL-Lmors.

J ACETYLENE-LAMP.

Application filedMarch 30,1914. Serial No. 828,112.

To all whom it may concern:

Be it known that I, AUGIE L. HANSEN, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Acetylene-Lamp, of which the followingis a specification.

My invention relates to acetylene lamps and particularly to those usedby miners.

Lamps of this character with which I am familiar are usually formed ofsheet metal and are generally soldered together. These lamps aregenerally used on miners caps, and it sometimes happens that the minerstrikes the lamp against the wall of the mine and the seams openpermitting the escape of gas into the mine if it is the carbidreceptacle which is damaged, or permits the water to escape if it is thewater reservoir, each of which is disastrous inasmuch as it deprives theminer of light.

In addition to this, these lamps are generally drawn or spun which is anexpensive method of manufacture, and it is well known that there is noway of drawing sheet metal so as to insure a uniform thickness of wallthroughout the article.

My invention has for its object to avoid the danger of a lamp beingopened at its seams and to provide a construction which will be verymuch more inexpensive than the making of a lamp from sheet metal andconsists of constructing an absolutely seamless lamp.

My means of accomplishing the foregoing objects may be more readilyunderstood by having reference to the accompanying drawings, which arehereunto annexed and are a part of this specification, in which:

Figure 1 is a vertical sectional view of my improved lamp.

Fig. 2 is a cross section taken on line mm in Fig. 1.

Fig. 3 is an enlarged fragmentary detail View showing the gasket formaking the joint gas tight intermediate the carbid receptacle and thewater reservoir.

Similar reference numerals refer to similar parts throughout the entiredescription.

As shown in the drawings, my lamp comprises a water reservoir 1, whichis cast without a seam, one end 52, forming the reflector, a passage 3,through which the gas passes from the carbid receptacle to theSpecification of Letters Patent. Patented J 119 26, 1917 burner is castintegral with the walls of the reservoir, the opening in the reflectorbeing adapted to receive the burner tip 4. A boss 5, is cast in thebottom of the reservoir and has threads cut therein which are adapted tobe engaged by threads cuton the upper end of a rod or stud 6, which iscast or formed in the center of the carbid receptacle 7. This boss may,if desired, be formed of a separate piece of metal and screwed orotherwise secured to the wall of the water reservoir. This receptacle isalso cast Without a seam. The result of this construction is that whenthe two are joined together, they present a lamp which is absolutelyseamless and which can be made very inexpensively.

A filler opening 8, and valve opening 9, can be cast in the waterreservoir of desired size or shape for the purpose they are intendedfor.

Although I have shown and described a specific form for this lamp, itwill be appar ent to persons skilled in the art, that my invention isnot limited to any particular form, but is only limited as suchlimitations shall appear hereinafter.

Having described my invention what I regard as new and desire to obtainby Letters Patent is:

1. A miners lamp comprising the combination with a water reservoirhaving its side and end walls cast integral, of a carbid receptaclehaving its side and bottom walls cast integral, the front wall of thewater reservoir being concaved to form a reflector, a central rodintegral with the carbid receptacle, the upper end of said rod beingthreaded, a boss cast in the bottom of the reservoir and having threadscut therein to cooperate with the threads of the central rod of thecarbid receptacle, whereby rotation of the water receptacle will holdthe water reservoir and carbid receptacle in engagement with each other,and means for providing communication between the water reservoir andcarbid receptacle.

2. A miners lamp comprising the combination with a water reservoirhaving its side and end walls cast integral, of a carbid receptaclehaving its side and bottom walls cast integral, a reflector forming thefront Wall of the Water reservoir, the water reservoir having adepending annular flange for engaging the upper :edge :of the tcarbidrecation between the water'receptacle and carceptacle, a threaded rodcarried by the carbid receptacle. 10 bid receptacle, a threaded bosscarried by the In testimony whereof I have signed the Water reservoirfor cooperating with the foregoing specification. V

threaded rod "of the carbid "receptaele Tor AUGI'E L. HANSEN.

forcing the annular flange of the Water res- Witnesses: ervolr intoengagement with the carbld re- C. M. BAUMEISTER, ceptac1e,.and meansfonprovldlng commum- V. C. LINDSTROM.

Copies of this patent may .beruhtainefl forifiveaeents-reaohfbyaddressing-the Commissioner of Patents,

Washington, I). G.

